280 



KAMBLES OF A NATURALIST. 



fore, includes only one species ; this unity, apart from all 

 other considerations, having been demonstrated by 

 modern science. 



Two Sub-kingdoms. 



f Vertebrata. 



\ Invertebrata. 



Four Classes. 



f Mammalia. 



Sub-kingdom of the I Aves. 

 VERTEBRATA. 1 Reptilia. 

 l^ Pisces. 



Three Divisions. 



ANIMAL 

 KINGDOM. 



Sub-kingdom of the 

 INVERTEBRATA. 



Articulata. 



Mollusca. 



Radiata. 



Two Sub-divisions. 



Division of ("True Articulata. 

 ARTICULATA. \ Vermes. 



* In order not to complicate these essentially elementary tables, I 

 have not represented the collateral affinities or analogies, to which I 

 long ago drew attention, and which are now recognised by the most 

 distinguished naturalists. I would here observe that I subdivide 

 the Vermes into two series, characterised by the union of the two 

 sexes in one individual, or by their separation in two individuals. 



